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Finding the Fourth Proportional to 310,949.74, 429,118.93 and 174,988.54

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Solution

The fourth proportional to 310,949.74, 429,118.93 and 174,988.54 is: 241,488.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,949.74 : 429,118.93 = 174,988.54 : x
  2. Step 2: Convert to fraction form
    310,949.74/429,118.93 = 174,988.54/x
  3. Step 3: Cross multiply
    310,949.74x = 429,118.93 × 174,988.54
  4. Step 4: Simplify right side
    310,949.74x = 75,090,895,047.06
  5. Step 5: Solve for x
    x = 75,090,895,047.06/310,949.74
  6. Step 6: Final answer
    x = 241,488.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.